WO2021238394A1

WO2021238394A1 - Casting dewaxing device

Info

Publication number: WO2021238394A1
Application number: PCT/CN2021/084161
Authority: WO
Inventors: 谈敏; 姚建堂; 靳亮
Original assignee: 湖州南丰机械制造有限公司
Priority date: 2020-05-29
Filing date: 2021-03-30
Publication date: 2021-12-02
Also published as: CN212443098U

Abstract

A casting dewaxing device, comprising a dewaxing kettle (1) and a casting feeding and discharging device (2). The casting feeding and discharging device comprises a traveling mechanism (21), a height-adjusting mechanism (22), a pair of guide rails A (23), and a casting frame (24) above the guide rails A which are sequentially arranged from bottom to top. The guide rails A ascend and descend by means of the height-adjusting mechanism. Four guide wheels (25) matching the guide rails A are arranged at the bottom of the casting frame. The dewaxing kettle comprises a kettle body (11) and a door body (12). A pair of guide rails B (13) matching the guide rails A is arranged in the kettle body. The dewaxing device can adjust the height of the guide rails according to the height of the dewaxing kettle. By connecting the guide rails A to the guide rails B, the casting frame can be enabled to slide on the guide rails, so that feeding and discharging are implemented, the labor intensity is greatly reduced, the working efficiency is improved, and potential safety hazards are eliminated.

Description

Casting dewaxing device

Technical field

The utility model relates to a casting dewaxing device.

Background technique

The basic process of investment casting can be divided into wax mold casting, shell manufacturing and roasting pouring. Since the mold shell plays a key role in the quality of castings, the manufacture of the mold shell itself is very critical. Common molding shell processing techniques include: degreasing and degreasing of wax molds, coating and sanding on wax molds, drying and hardening of mold shells, melting wax molds and baking mold shells. Since the melting point of the wax mold material is usually low, the melting loss of the wax mold with a small amount of ordinary shell can be put into boiling water. For large-scale shells or mass production occasions, a special dewaxing kettle is usually needed to complete the process, and the steam dewaxing kettle is a relatively common type of dewaxing kettle.

technical problem

When the dewaxing kettle is feeding, it is necessary to manually move the casting rack with the castings to the dewaxing kettle. When discharging, the casting rack is manually moved from the dewaxing kettle to the predetermined position. The labor intensity is high and it is very difficult to use. Convenient and easy to cause safety accidents.

Technical solutions

In view of the above problems, the present invention provides a casting dewaxing device, thereby effectively solving the problems pointed out in the background art.

The technical scheme adopted by the utility model is:

A casting dewaxing device includes a dewaxing kettle and a casting feeding and discharging device. The casting feeding and discharging device includes a walking mechanism, a lifting mechanism, a pair of guide rails A, and a casting rack above the guide rail A, which are arranged in sequence from bottom to top The guide rail A is raised and lowered by a lifting mechanism, the bottom of the casting frame is provided with four guide wheels matching the guide rail A, the dewaxing kettle includes a kettle body and a door body, and the kettle body is provided with There is a pair of rail B that matches with rail A.

The height of the guide rail can be adjusted according to the height of the dewaxing kettle through the lifting mechanism. The guide wheel at the bottom of the casting rack can slide along the guide rail. When the traveling mechanism walks to the feeding port of the dewaxing kettle, the casting rack can be pushed to slide on the guide rail. , And finally directly slide into the dewaxing kettle, which greatly reduces labor intensity, improves work efficiency, and eliminates safety hazards. The guide rail A and the guide rail B are docked when the material is in and out, so as to realize the sliding of the casting frame.

Preferably, a tapered guide block is fixed at the outer end of the guide rail A, and a tapered guide groove matching the tapered guide block is opened on the outer end of the guide rail B.

The matching design of the tapered guide block and the tapered guide groove facilitates the alignment of the guide rail A and the guide rail B, and at the same time, there will be no deviation after the alignment, which is conducive to the sliding of the casting frame between the guide rail A and the guide rail B.

Preferably, the outer end of the guide rail B has a limit pin hole in the vertical direction, and the limit pin hole is matched with a limit pin.

The stop pin is used to prevent the casting frame on the guide rail B from sliding out.

Preferably, the walking mechanism includes a bracket, and a walking wheel installed at the bottom of the bracket.

The traveling mechanism composed of the bracket and the traveling wheels has a simple structure, is convenient to manufacture, has low cost, and is easy to repair when damaged.

Preferably, the lifting mechanism includes a screw rod vertically fixed at the bottom of the guide rail A, and a nut matching the screw rod. The bracket is provided with a through hole matching the screw rod, and the nut is located in the through hole. Above the top of the hole.

The use of a lifting mechanism composed of a nut and a screw has high adjustment accuracy, low manufacturing cost, and convenient maintenance.

Preferably, the rear of the two guide rails A are fixedly connected by a cross beam, the top of the rear end of the guide rail A is fixed with a limit block, the casting frame and the cross beam are provided with a pair of bolt holes, when the casting frame moves backward to When the guide wheel abuts the limit block, the two bolt holes are aligned in the vertical direction, and at this time, the casting frame can be fixed to the guide rail A by the fixing bolt.

The guide rails are fixed together by the cross beam, and the guide rail and the casting frame are fixed by the bolt on the cross beam, which can ensure that the casting frame will not slide when the walking mechanism is walking. The limit block realizes the positioning of the casting frame and the guide rail, which is convenient for the latching use.

Preferably, a push rod is fixed behind the walking mechanism.

The push rod is used to push the walking mechanism to walk.

Preferably, the guide wheel includes a wheel body and a rim fixed on the inner side of the guide wheel.

The guide wheel adopts a structural design similar to a train wheel, which can ensure the walking of the casting frame on the guide rail.

Preferably, the bottom of the casting frame is a steel wire mesh.

The wire mesh facilitates the flow of molten wax into the dewaxing kettle.

Beneficial effect

[0024] The utility model can adjust the height of the guide rail according to the height of the dewaxing kettle through the lifting mechanism. The guide wheel at the bottom of the casting rack can slide along the guide rail, and can be pushed when the walking mechanism walks to the feeding port of the dewaxing kettle. The casting frame slides on the guide rail, and finally directly slides into the dewaxing kettle, which greatly reduces labor intensity, improves work efficiency, and eliminates safety hazards. The guide rail A and the guide rail B are docked during the in and out of the material, so as to achieve the casting rack. slide.

Description of the drawings

Figure 1 is a schematic diagram of the structure of the utility model;

Figure 2 is a schematic diagram of the structure of the utility model

Figure 3 is a schematic view of the structure of the casting in and out device;

Fig. 4 is a schematic diagram of the structure of the casting feeding and discharging device.

The best mode of the present invention

Hereinafter, the present utility model will be further described in detail through specific embodiments in combination with the accompanying drawings.

Example 1

As shown in Figures 1-4, a casting dewaxing device includes a dewaxing kettle 1 and a casting feeding and discharging device 2. The casting feeding and discharging device 2 includes a walking mechanism 21 and a lifting mechanism 22 arranged in sequence from bottom to top And a pair of guide rails A23, and a casting frame 24 above the guide rail A23. The guide rail A23 is lifted and lowered by a lifting mechanism 22. The bottom of the casting frame 24 is provided with four guide wheels 25 that match the guide rail A23. The dewaxing kettle 1 includes a kettle body 11 and a door body 12. The kettle body 11 is provided with a pair of guide rails B13 matching the guide rails A23.

A tapered guide block 231 is fixed at the outer end of the guide rail A23, and a tapered guide groove 131 matching the tapered guide block 231 is opened on the outer end of the guide rail B13.

The outer end of the guide rail B13 has a limit pin hole 14 in the vertical direction, and a limit pin 15 is matched in the limit pin hole 14.

The walking mechanism 21 includes a bracket 211 and a walking wheel 212 installed at the bottom of the bracket 211.

The lifting mechanism 22 includes a screw 221 vertically fixed at the bottom of the guide rail A23, and a nut 222 that matches the screw 221. The bracket 211 is provided with a through hole that matches the screw 221 (not marked in the figure). Out), the screw 221 can move up and down in the through hole, and the nut 222 is located above the top of the through hole.

The rear of the two guide rails A23 are fixedly connected by a cross beam 26, the top of the rear end of the guide rail A23 is fixed with a limit block 27, a pair of bolt holes are opened on the casting frame 24 and the cross beam 26, when the casting frame 24 is backward When the guide wheel 25 is moved to abut the stop block 27, the two bolt holes are aligned in the vertical direction. At this time, the casting frame 24 and the guide rail A23 can be fixed by the fixing bolt 28.

A push rod 29 is fixed behind the walking mechanism 21.

The guide wheel 25 includes a wheel body and a rim fixed on the inner side of the guide wheel 25.

The bottom of the casting frame 24 is a steel wire mesh.

The working principle of the utility model:

In the initial state, the casting frame 24 is fixed with the guide rail A23 by the fixing pin 28. When feeding, the casting is placed on the casting frame 24, and then the push rod 29 is pushed to make the traveling mechanism 21 walk to the dewaxing kettle 1 At the feeding port, the tapered guide block 231 and tapered guide groove 131 are used to quickly align the guide rail A23 with the guide rail B13, and then pull out the fixed pin 28, and push the casting frame 24 into the dewaxing kettle 1 along the guide rail A23. The limit pin 15 is inserted into the limit pin hole 14 to prevent the casting frame 24 from sliding out. Finally, the push rod 29 is pulled to remove the guide rail A23, thus completing the feeding. When the dewaxing kettle 1 has completed the dewaxing of the castings, push The push rod 29 makes the walking mechanism 21 walk to the feed port of the dewaxing kettle 1, and relies on the tapered guide block 231 and the tapered guide groove 131 to quickly align the guide rail A23 with the guide rail B13, and then pull out the limit pin 15 and then cast the part The frame 24 slides into the guide rail A23 until the guide wheel 25 abuts against the limit block 27, insert the fixing pin 28 to fix the casting frame 24 on the guide rail A23, and finally remove the guide rail A23 through the push rod 29, thus completing the discharge After the casting is removed from the casting rack 24, the casting can be put in again for the next feeding.

Finally, it should be noted that the above-listed are only specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, and many variations are possible. All the deformations that can be directly derived or associated by those of ordinary skill in the art from the disclosure of the present utility model should be considered as the protection scope of the present utility model.

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Claims

A casting dewaxing device, characterized in that it comprises a dewaxing kettle (1) and a casting feeding and discharging device (2). The casting feeding and discharging device (2) includes a walking mechanism (21) arranged sequentially from bottom to top , A lifting mechanism (22) and a pair of guide rails A (23), and a casting frame (24) above the guide rail A (23), the guide rail A (23) is lifted and lowered by the lifting mechanism (22), the casting frame The bottom of (24) is provided with four guide wheels (25) that match the guide rail A (23). The dewaxing kettle (1) includes a kettle body (11) and a door body (12). A pair of guide rails B (13) matched with guide rails A (23) are arranged in the body (11).
The casting dewaxing device according to claim 1, wherein a tapered guide block (231) is fixed at the outer end of the guide rail A (23), and the outer end of the guide rail B (13) is opened There is a tapered guide groove (131) matched with the tapered guide block (231).
The casting dewaxing device according to claim 1, wherein the outer end of the guide rail B (13) is provided with a limit pin hole (14) in the vertical direction, and the limit pin hole ( 14) There is a limit pin (15) in the matching.
The casting dewaxing device according to claim 1, wherein the walking mechanism (21) comprises a bracket (211), and a walking wheel (212) installed at the bottom of the bracket (211).
The casting dewaxing device according to claim 4, characterized in that the lifting mechanism (22) comprises a screw (221) vertically fixed at the bottom of the guide rail A (23), and a screw (221) corresponding to the screw (221). A matching nut (222) is provided with a through hole matching the screw (221) on the bracket (211), and the nut (222) is located above the top of the through hole.
The casting dewaxing device according to claim 1, wherein the rear of the two guide rails A (23) are fixedly connected by a cross beam (26), and the top of the rear end of the guide rail A (23) is fixedly limited Position block (27), the casting frame (24) and the beam (26) are provided with a pair of bolt holes, when the casting frame (24) moves backward until the guide wheel (25) and the limit block (27) abut , The two bolt holes are aligned in the vertical direction, and at this time, the casting frame (24) and the guide rail A (23) can be fixed by the fixing bolt (28).
The casting dewaxing device according to claim 1, characterized in that a push rod (29) is fixed behind the walking mechanism (21).
The casting dewaxing device according to claim 1, wherein the guide wheel (25) comprises a wheel body and a rim fixed on the inner side of the guide wheel (25).
The casting dewaxing device according to claim 1, wherein the bottom of the casting frame (24) is a steel wire mesh.

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